# Service bulletin ATC1771

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10086328
- Published by NHTSA: 2016\-12\-15
- Manufacturer's number: ATC1771
- Manufacturer's date: 2016\-04\-12
- NHTSA component: ENGINE

## NHTSA's summary

THIS ATC IS BEING ISSUED TO ADDRESS DEF DOSING VALVE GASKET FAILURES IN CERTAIN ISB6.7 CM2250 ENGINES IN SCHOOL BUS APPLICATIONS. THIS ATC PROVIDES AUTHORIZATION FOR CERTIFIED REPAIR LOCATIONS TO REPLACE THE CURRENT GASKET WITH AN IMPROVED GASKET.

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Engine

## Vehicles listed

- CUMMINS ISB6.7

JSON: [/v1/bulletins/10086328](/v1/bulletins/10086328)

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